[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 33.468558] audit: type=1800 audit(1542300889.983:33): pid=5971 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 33.497441] audit: type=1800 audit(1542300889.983:34): pid=5971 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [ 34.388584] audit: type=1400 audit(1542300890.903:35): avc: denied { map } for pid=6144 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 34.424192] sshd (6142) used greatest stack depth: 15744 bytes left Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.120' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.186292] audit: type=1400 audit(1542300897.693:36): avc: denied { map } for pid=6159 comm="syz-executor560" path="/root/syz-executor560254081" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 41.192245] netlink: 'syz-executor560': attribute type 3 has an invalid length. [ 41.212927] audit: type=1400 audit(1542300897.693:37): avc: denied { create } for pid=6159 comm="syz-executor560" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 41.220602] netlink: 'syz-executor560': attribute type 2 has an invalid length. [ 41.245743] audit: type=1400 audit(1542300897.693:38): avc: denied { write } for pid=6159 comm="syz-executor560" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 41.253184] WARNING: CPU: 0 PID: 6159 at net/netfilter/nfnetlink_cttimeout.c:478 cttimeout_default_get+0x1df/0xb30 [ 41.287121] Kernel panic - not syncing: panic_on_warn set ... [ 41.292998] CPU: 0 PID: 6159 Comm: syz-executor560 Not tainted 4.20.0-rc2+ #114 [ 41.300440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.309777] Call Trace: [ 41.312358] dump_stack+0x244/0x39d [ 41.315971] ? dump_stack_print_info.cold.1+0x20/0x20 [ 41.321154] panic+0x2ad/0x55c [ 41.324328] ? add_taint.cold.5+0x16/0x16 [ 41.328464] ? __warn.cold.8+0x5/0x45 [ 41.332251] ? __warn+0xe8/0x1d0 [ 41.335605] ? cttimeout_default_get+0x1df/0xb30 [ 41.340345] __warn.cold.8+0x20/0x45 [ 41.344039] ? rcu_softirq_qs+0x20/0x20 [ 41.347996] ? cttimeout_default_get+0x1df/0xb30 [ 41.352737] report_bug+0x254/0x2d0 [ 41.356348] do_error_trap+0x11b/0x200 [ 41.360222] do_invalid_op+0x36/0x40 [ 41.363920] ? cttimeout_default_get+0x1df/0xb30 [ 41.368662] invalid_op+0x14/0x20 [ 41.372101] RIP: 0010:cttimeout_default_get+0x1df/0xb30 [ 41.377503] Code: 00 0f 87 8d 00 00 00 41 80 ff 06 0f 84 94 07 00 00 41 80 ff 11 0f 84 6c 07 00 00 41 80 ff 01 0f 84 44 07 00 00 e8 91 f1 20 fb <0f> 0b 41 bd a1 ff ff ff eb 06 41 bd a1 ff ff ff e8 7c f1 20 fb 48 [ 41.396410] RSP: 0018:ffff8881d216f2b0 EFLAGS: 00010293 [ 41.401773] RAX: ffff8881d1f2e140 RBX: ffffffff88bf58e0 RCX: ffffffff865e961c [ 41.409032] RDX: 0000000000000000 RSI: ffffffff865e964f RDI: 0000000000000001 [ 41.416284] RBP: ffff8881d216f3c0 R08: ffff8881d1f2e140 R09: ffffed103b5c5b67 [ 41.423536] R10: 0000000000000002 R11: ffff8881dae2db3b R12: 0000000000000088 [ 41.430793] R13: ffff8881c5eb0540 R14: 0000000000000000 R15: 0000000000000088 [ 41.438065] ? cttimeout_default_get+0x1ac/0xb30 [ 41.442806] ? cttimeout_default_get+0x1df/0xb30 [ 41.447563] ? lock_downgrade+0x900/0x900 [ 41.451713] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 41.456458] ? __lock_is_held+0xb5/0x140 [ 41.460510] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 41.465250] nfnetlink_rcv_msg+0xdd3/0x10c0 [ 41.469568] ? nfnetlink_bind+0x3b0/0x3b0 [ 41.473705] ? __netlink_lookup+0x5b6/0xa90 [ 41.478017] ? find_held_lock+0x36/0x1c0 [ 41.482068] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.487590] ? cred_has_capability+0x1e1/0x430 [ 41.492159] ? selinux_ipv4_output+0x50/0x50 [ 41.496564] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 41.502015] ? kasan_check_read+0x11/0x20 [ 41.506148] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 41.511413] ? rcu_softirq_qs+0x20/0x20 [ 41.515397] netlink_rcv_skb+0x172/0x440 [ 41.519453] ? nfnetlink_bind+0x3b0/0x3b0 [ 41.523597] ? netlink_ack+0xb80/0xb80 [ 41.527477] ? __netlink_ns_capable+0x100/0x130 [ 41.532151] nfnetlink_rcv+0x1c0/0x4d0 [ 41.536025] ? nfnetlink_rcv_batch+0x19b0/0x19b0 [ 41.540768] ? kasan_check_write+0x14/0x20 [ 41.544999] netlink_unicast+0x5a5/0x760 [ 41.549048] ? netlink_attachskb+0x9a0/0x9a0 [ 41.553452] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.558978] netlink_sendmsg+0xa18/0xfc0 [ 41.563027] ? netlink_unicast+0x760/0x760 [ 41.567248] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.572786] ? security_socket_sendmsg+0x94/0xc0 [ 41.577539] ? netlink_unicast+0x760/0x760 [ 41.581765] sock_sendmsg+0xd5/0x120 [ 41.585466] ___sys_sendmsg+0x7fd/0x930 [ 41.589425] ? find_held_lock+0x36/0x1c0 [ 41.593476] ? copy_msghdr_from_user+0x580/0x580 [ 41.598235] ? zap_class+0x640/0x640 [ 41.601934] ? zap_class+0x640/0x640 [ 41.605630] ? zap_class+0x640/0x640 [ 41.609330] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.614857] ? __fget_light+0x2e9/0x430 [ 41.618814] ? fget_raw+0x20/0x20 [ 41.622256] ? __do_page_fault+0x620/0xe60 [ 41.626474] ? lock_downgrade+0x900/0x900 [ 41.630606] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 41.635518] ? kasan_check_read+0x11/0x20 [ 41.639656] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 41.645176] ? sockfd_lookup_light+0xc5/0x160 [ 41.649657] __sys_sendmsg+0x11d/0x280 [ 41.653531] ? __ia32_sys_shutdown+0x80/0x80 [ 41.657928] ? up_read_non_owner+0x100/0x100 [ 41.662365] ? do_syscall_64+0x9a/0x820 [ 41.666326] ? do_syscall_64+0x9a/0x820 [ 41.670292] ? trace_hardirqs_off_caller+0x310/0x310 [ 41.675380] __x64_sys_sendmsg+0x78/0xb0 [ 41.679486] do_syscall_64+0x1b9/0x820 [ 41.683360] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 41.688710] ? syscall_return_slowpath+0x5e0/0x5e0 [ 41.694008] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.698842] ? trace_hardirqs_on_caller+0x310/0x310 [ 41.703854] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 41.708856] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.714383] ? prepare_exit_to_usermode+0x291/0x3b0 [ 41.719391] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.724279] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.729453] RIP: 0033:0x4400d9 [ 41.732631] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 41.751521] RSP: 002b:00007ffd43609ee8 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 41.759215] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 41.766473] RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 [ 41.773739] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 41.780990] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 41.788243] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 41.796701] Kernel Offset: disabled [ 41.800371] Rebooting in 86400 seconds..